Julius wien



(Mom) J WIEN HINGE,

No. 385,156. Patented June 26, 1888.

- mat/ 72507,

UNITED STATES PATENT EEicE.

JULIUSWIEN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-THIRD TO J AMES R.\VIGGINS, OF SAME PLACE.

HINGE.

SPECIFICATION forming part of Letters Patent No. 385,156, dated June 26,1888.

Application filed December 17, U387. Seiial No. 258,189. (Modem To aZZwhom it may concern Be it known that I, JULIUs WIEN, of Chiinventedcertain new and useful Improve ments in a Door-Hinge, of which thefollowing is a full, clear, and exact description that will enableothers to make and use the same, reference being had to the accompanyingdrawings,forming a part of this specification.

The object of this invention is to provide a hinge which is adapted tobe self-closing or adjusted to have the functions of an ordinary hinge,as may be required, the same consisting of certain peculiar and novelfeatures in the construction and operation of the device, as will behereinafter set forth.

Figure 1 is a side elevation of a hinge embodying my improved features,showing the side that is attached to the door orsiniilar object; Fig.2,an elevation with the door-half of the hinge removed. Fig. 3 shows thehinge open. Fig. 4 is a back view showing the device adjusted to operateas an ordinary hinge. Fig. 5 is a similar view showing the hinge ad- 2 5justed to be selfclosing.

Referring to the'drawings, A represents the leaf that is usuallyattached to the door, B the companion leaf, and C the pintle.

The leaf B, or jamb part of the hinge, is provided at the ends with theknuckles a a, the companion leaf A having the central knuckle a which iscut away on the under side to provide the spiral surface a as shown inthe different figures of the drawings. The upper side of the knuckle ais provided with the conical part a, which passes into the correspondingannular cavity, (5, formed in the knuckle a of the leaf B, when thehinge is adjusted or set to be selfclosing and opened out, as shown inFig. 3. When the hinge is closed, the conical end of the knuckle a isdisengaged from the cavity or recess a as shown in the sectioned part ofFig. 1. This conical end strengthens and increases the bearing-surfaceand covers the pintle at this point, which would not be the case werethe conical part absent, but would leave a space at this point andpresent an unfinished appearance.

The knuckle D is an independent part p mounted loosely on the pintle,and is cutaway spirally, as at b, on the upper side to correspond to thecutaway spiral surface on the under side of the knuckle a. These spiralsurfaces have a uniform bearing relative to each other when the hinge isin a closed position, as shown in Figs. 1, 4, and 5.

The loose knuckle D is provided in the back with the horizontaltransverse slot 1) (see Figs 4 and 5) and the vertical slotb", runninginto the slot b and extending down into the knuckle a, attached to theleaf B, thus forming a T-shaped slot.

cl is an angular key adapted to removably engage with the T-shapcd slot(see Fig. 4)

and lock the loose knuckle D and the knuckle.

a rigidly together. In this position the hinge and object to which it isattached are self-closing, by reason of the spiral riding surfaces ofthe loose knuckle D and the knuckle a ,forming a rigid part of the leafA. By this arrangement the leaf A is gradually raised up to the positionshown in Fig. 3 as the same is thrown open, and when the pressure isreleased the hinge is automatically closed by force of gravity.

By simply removing the key d the hinge is converted into a device of theusual or ordinary character, having none of the functions ofself-closing, as the loose knuckle D will then rotate on the pintleinstead of remaining in a stationary position.

d is a slot in the back of the knuckle a, in which to lodge the key (1when the same is not required for use.

By this construction and arrangement a hinge of a dual character andfunction is provided in one, and which may be quickly and convenientlychanged from one to the other, as circumstances may require.

Having thus described myinvention, what I claim, and desire to secure byLetters Patent, lS-- In a hinge of the character described, thecombination, with the leaf A, provided with the central knuckle, ahaving a spiral sur face on the under side, of the independent or looseknuckle D, having the upper side cut away in a corresponding plane andprovided qnired, siibstunlially as and fur the purpose with thetransverse slot 1), the leaf B, the set forth. knuckle a thereof,provided with the vertical I slot 12 which extends into the knuckle D,and JULIUS WIEN 5 the angular key adapted to be inserted in Witnesses:

said slots, whereby these parts are rigidly L. M. FREEMAN, lockedtogether or disengaged, as may be re- L. B. COUPLAND.

